body{
    background-image: url("../images/blog.jpg");
    background-color: rgba(0,0,0,.5);
    background-attachment: fixed;
    background-size: cover;
}

.links{
    width: 70%;
}

.test{
    width: 28%;
}

.link_explain{
    background-color: #ffffff;
}

.link_explain h2{
    font-size: 20px;
}